Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Lynn McGuire Newsgroups: comp.lang.fortran Subject: Re: I am getting a strange error when compiling abcpar.f in gfortran Date: Mon, 18 Nov 2024 13:38:09 -0600 Organization: A noiseless patient Spider Lines: 61 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 18 Nov 2024 20:38:10 +0100 (CET) Injection-Info: dont-email.me; posting-host="bc540513460c2acb3c6b57a63e9c6bd0"; logging-data="1480725"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19wq22w8wfWYWu8he0PJYf3DtBJjZ2EAus=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:0P4AYaWHRTC5j5AooU7ZjCuh7Oc= In-Reply-To: Content-Language: en-US Bytes: 4001 On 11/18/2024 5:50 AM, R Daneel Olivaw wrote: > Lynn McGuire wrote: >> On 11/12/2024 4:01 PM, baf wrote: >>> On 11/12/2024 12:43 PM, Lynn McGuire wrote: >>>>>>>> >>>>>>> If all of your general purpose subroutines and functions are in >>>>>>> modules, you don't need interfaces for them (one of the >>>>>>> advantages of modules). >>>>>> >>>>>> I have 6,000 subroutines in 5,000 files.  All I did was put >>>>>> interfaces for about 2,600 of the subroutines into a single module. >>>>>> >>>>>> Lynn >>>>>> >>>>> A better alternative would be to put the subroutines in the module >>>>> and USE the module. Then you don't need the interfaces (the >>>>> compiler gets all of the interface information "automagically"). >>>> >>>> 850,000 lines of code in a single file ?  That would be a mess. >>>> >>>> Lynn >>>> >>> I wasn't suggesting a single module. Partition the subprograms into >>> meaningful subgroups. Also, as was indicated, you can use submodules >>> to avoid cascading compilation issues with a large number of modules. >> >> My father and two other engineer profs started developing the software >> back in 1968 on a Univac 1108.  It had 32K words of data space and 32K >> words of code space.  To build large software, we had to manually >> partition the software ourselves so that it would fit into those 32K >> words of code space.  It was a major pain when somebody would update a >> subroutine and mess up the partition map. >> >> When I personally started working on the software in 1975, it was one >> of my jobs to update the huge partition map on the wall outside my >> bosses office.  I used the big computer sheets and taped them >> together, about a hundred or so of the sheets. >> >> Never again. >> >> Lynn >> > > Were you using @FOR (Fielddata) or @FTN (Ascii)? > Things became much simpler when multiple Ibanks and addresses over 0200 > 000 became possible (for @ftn, @for was abandoned at some point).  I > think @ftn also permitted multiple Dbanks but I never used that, the > code generated was - by necessity - horrific. It has been 49 years ago, I do not remember. Too many computers, too many languages. I have written software in around dozen languages and a dozen platforms now. Fortran, IBM 370 Assembly, Basic, Pascal, C, HTML, Perl, C++, Smalltalk, bsh, Visual Basic, etc. We gave up on the Univac 1108 in 1981 ??? and the CDC 7600 in 1982. I started working at another company in 1982 when I finished my degree in Mechanical Engineering at TAMU. I went back to the engineering software company in 1989. Lynn